Prefab/ˈpriːfæb/ Definition 1 of 2Pro Tip 1/3Time Saving 'Prefab' suggests a building can be made quickly since parts are made beforehand. Our prefab office was up and running within two months. Pro Tip 2/3Cost Effective 'Prefab' often implies lower costs compared to traditional construction methods. They chose a prefab design to keep within their budget. Pro Tip 3/3Standardized Design 'Prefab' buildings typically follow set designs with limited customization. Although it was prefab, their home still felt unique to them.